--- a/Source/JavaScriptCore/CMakeLists.txt.orig 2015-08-06 11:21:27.000000000 +0300
+++ b/Source/JavaScriptCore/CMakeLists.txt      2015-10-29 17:47:10.535712494 +0300
@@ -1146,6 +1146,7 @@
         list(APPEND JavaScriptCore_SOURCES ${DERIVED_SOURCES_DIR}/GeneratedJITStubs.obj)
     endif ()
 elseif (WTF_CPU_ARM64)
+elseif (WTF_CPU_ALPHA)
 elseif (WTF_CPU_HPPA)
 elseif (WTF_CPU_IA64)
 elseif (WTF_CPU_PPC)
 elseif (WTF_CPU_PPC64)
--- a/CMakeLists.txt.orig 2015-08-06 11:21:27.000000000 +0300
+++ b/CMakeLists.txt      2015-10-29 01:23:37.416886279 +0300
@@ -82,6 +82,8 @@
     set(WTF_CPU_ARM 1)
 elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
     set(WTF_CPU_ARM64 1)
+elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "alpha")
+    set(WTF_CPU_ALPHA 1)
 elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "^mips")
     set(WTF_CPU_MIPS 1)
 elseif (LOWERCASE_CMAKE_SYSTEM_PROCESSOR MATCHES "sh4")